Application of high‐frequency oscillation ventilation combined with volume guarantee in infants with acute hypoxic respiratory failure after congenital heart surgery

Objective This study aimed to evaluate the efficacy and safety of high‐frequency oscillation ventilation combined with volume guarantee (HFOV‐VG) compared with the safety and efficacy of HFOV alone in infants with acute hypoxemic respiratory failure (AHRF) after congenital heart surgery. Methods We retrospectively analyzed the clinical data of 44 infants who were ventilated for AHRF after congenital heart surgery between January 2020 and January 2021. HFOV alone was used in 23 of the 44 infants, whereas HFOV‐VG was used in the other 21 infants. Results The average frequency tidal volume (VThf) of the HFOV‐VG group was lower than that of the HFOV group, and the proportion of VThf exceeding the target range of infants in the HFOV‐VG group was also lower (p